Writing instrument



FIG. 1 is a front elevational view of a writing instrument showing our new design;

FIG. 2 is a right elevational view thereof, the left side being a mirror image of the right side;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a front elevational view thereof with the cap removed, rear, left and right sides being mirror images of the front side;

FIG. 7 is a top view of FIG. 6;

FIG. 8 is a bottom view of FIG. 6; and,

FIG. 9 is a front elevational view of a writing instrument showing a second embodiment of our new design, rear, left and right sides being mirror images of the front side. Top and bottom views of FIG. 9 are represented in FIGS. 7 and 8. 

The ornamental design for a writing instrument, as shown and described. 